Pulling-over machine.



H. A. BALLARD.

PULLING-OVER MACHINE.

APPLIGATIOHIILED SEPT. 28. 1907.

1 1 1 R391 Patented Nov. 17, 1914 5 SHEETS-SHEET 1.

llllll mam H. A. BALLARD.

PULLING-OVBR MACHINE.

APPLICATION FILED SEPT. 28,1907. 1,1 17,301 Patented N0v.17, 1914.

5 SHEETS-SHEET 2.

In?) am d 07" fr-rc'e 14 .BaZZaw-c? H. A. BALLARD.

PULLING-OVER MACHINE.

APPLICATION FILED SEPT. 28, 1907.

1,117,301, Patented N0vf17, 1914.

6 SHEETSSHEET 4.

H. A. BALLARD.

PULLING-OVER MACHINE.

APPLICATION FILED SEPT. 28, 1907.

Patented NOV. 17, 1914.

6 SHEETS-SHEET 6 Qua . ww wmm NEW JERSEY.

FUELING-OVER 5.. BALLARD. 6F BOSTON. MASSACHUSETTS. ASSIGNOB TO THEBOYLSTON ':-ACTUBING comm. 0F BOSTON, MASSACHUSETTS. & CORPORATION OF YPatented Nov. 17.19pm

Application filed September 28. 1907. Serial No. 894.966.

To all whom it may cmicern Be it known that 1. Hanan: A. BALLARD. ofBoston. in the county of Suifolk and State of Massachusetts. haveinvented certain new and useful Improvements in Fulling-Over Machines.of which the following machines of the general class named. for

rendering them more accurate and eflicient in operation. and to this endthe invention consists in the features of construction and arrangementillustrated upon the acconb panying drawings. described in the followingspecification. and set forth in the ap pended claims.

Referring to said drawings. Figure l represents a side elevation of amachine embodying the invention. Fig. 2 represents a front elevation ofthe same. Fig. 3 represents a side elevation of a part of the machine.and

.shows in dotted lines some of the parts hidden in Fig. 2. Fig. 4represents the spring drive for the driver bar'.' Fig. 5 illustrates theworm gearing for rotating the hopper. Fig. 6 shows in side elevation andpartially in section the front portion of the machine. Fig. i'represents in plan view and partially in section. the mechanism foreffecting the lateral movement of the delivery end of the raceway. themeans for yieldingly mounting the picker and the gearing for eifectingthe rotation of the hopper. Fig. 8 represents a perspective view of theparts at the lower end of the raceway. Figs. 9. 10. 11 and 12 aresectional views illustrating the picker mechanism. Figs. 10. 11 and 12illustrating the picking of a single fastener. Fig. 13 represents alongitudinal section through the same mechanism. finger for closing theentrance to the discharge throat of the raceway. Figs. 15, 16 and 1?(Sheet 2\ are perspective views of l per.

Fig. 11 illustrates the the. picker mechanism. Fig. 18 is a verticalsection of the delivery end of the raceway. F 1g. 19 is a perspectiveview of brake members for stopping the machine. Fig. :20 illustrates themeans for mounting the hop- Fig. 21 represents a longitudinal sectionthrough the hopper. Figs. :22 and 23 illustrate the device for removingimproperly placed tacks in the raceway.-

The machine is preferably constructed with an upright column or support10. to which is attached the frame or head 11. the said frame being ofany convenient shape to receive the various operative parts. In theframe is journaled the main power shaft 12 to which rotation is impartedfrom a pulis adapted to be clutched to the shaft to effect its rotationthrough the complemental clutch members indicated at 11. The means tomove the pulley'in opposition to the spring 17 so as to operativelyengage the complemental clutch member 14. The controller 16, which ispivoted on a stud 18, is movable into and out of engagement with theclutchsetting mechanism 15, and so long as it is disengaged. rotation isimparted to the shaft. When the controller is in the position shown onthe drawing. it renders the mechanism 15 inoperative. allowing thespring 1? to separate the clutch members 14. Suitable brake mechanism.hereinafter described. is provided for arresting movement of the shaft12. said mechanism, together with the clutch setting mechanism 15 andcontrolling mechanism. causing the shaft. 12 to stop atthe some pointeach time.

One emment of the present invention, which is illustrated upon theaccompanying drawings. includes fastener-driving mechanism comprisingprimarily a tack-reservoir 20. a tack-driver 21. a tack-race 22 forconducting tacks from the reservoir to the driver, and a tack pick 23for placing the tacks one by one in position to bedriven. The driver ismounted on a, driver bar 24L movable back and forth in guides 19 on thehead. The upper end of the driver bar is connected with a spring driver25 (see Fig. 1) having a spring 26 which actuates it so as to drive thetacks as hereinafter described. The driver bar is raised and held in aninitially raised position by a flange 27 formed on a coller 28 afixed tothe forward end of the shaft12 (see Fig. 1). The flange 27 engages theunder side of ablock 29 rabbeted into the driver bar, and, as it rotatesin the direction of the arrow in Fig. 2, its rounded 4 end first engagesthe block 29, and then continues to rotate to its position of rest,which the same figure illustrates. 'Upon subsequent rotation of theshaft 12, the rear end of the flange 27 moves from under the block 29,whereupon the driver bar 24 is driven by the driver 25 toward the workheld below. Descent of the driver bar is arrested by a buder 30 attachedto the upper end thereof and adapted to impinge against the guide 19. I

A suitable bra-kemechanism appears in Figs. 1, 2 and 19, and in the formshown comprises a bandor shoe 31, a yoke 3.2,and bolts 33'for connectingthe shoe and yoke. The shoe 31 has an internal semi-circular face whichis adapted to frictionally engage the exterior of the collar 28. Theyoke 32 is pivoted to the head 11 by a stud 3t, and its free end has alip 35 which overhangs the block 29 on the driver bar. The shoe isadjustably connected to the yoke so that when the driver bar is raisedto its initial the tack-race being fastened rigidly to the reservoir isadapted to oscillate therewith. By reason of so mounting the tack-race,the delivery end thereof is adapted to coiiperate with the stationarytack-pick to advance the tacks one by one into the discharge throat 3,7,as hereinafter described. The reservoir 29 is provided with a bearingfor a rotatable shaft 38 on which is mounted a rotatable elevator 39having 'buckets 40 for elevating tacks in the reservoir anddischarging'them upon the upper end of the tack-race. For rotating theelevator, the shaft 38 has afixed .o it a collar 41, and a loose collar42 proided with spiral gear teeth i3. A. fricion washer this interposedbetween the colnirvana lars t1 and 42 and-a spring 45 forces loosecollar toward the fixed collar, thereby maintaining frictional drivingrelation between the two. The spiral gear 43 is driven by a worm gear 16afixed to the shaft 12,

mounted a wiper 49. The shaft extends 1 through the casing of the,reservoirand on its outer end .has a gear 59 which intermeshes withgear teeth 51 formed on the periphery of the elevator 39. Rotation ofthe elevator causes the stripper to revolve in the direction of thearrow in Fig. 22, and the wipers 4 9 being radially movable on theirarms 48, wipe from the tack-race all tacks which lie in any positionexcept that in which the shanks extend into the raceway and the headslie flat upon the top edge. An arm 52 is formed on the reservoir andprovided with a roll 53 which occupies the groove of a cam 54 aflixed tothe shaft 12, the said cam serving to oscillate the reservoir andtack-race upon the trunnions 36, as stated. A

The delivery end of the tack-race 22 extends through a gap 55 in atack-pick holder 56, of which a convenient form is shown in Figs. 10 to13, andis free to move laterally back and forth in the gap. The "holder56 is pivotally mounted upon a suitable support, such as a stud 57 inthe forked end of a lever 58 (see also Figs. 3 and 6). The tack pick 23isdove-tailed and mounted in the inner face of the holder 56 on one sideof the gap 55, andatack gage or stop 59, also dove-tailed, is similarlymounted in the holder on" the other side of the gap 55. The

pick 23 and stop 59 extend inwardly toward each other through alaterally-extending aperture 60 formed in the tack-race so as tointersect the wall of the discharge throat 37 where the raceway joinsthe latter. The inner ends of the pick and stop are beveled so as toform pointed noses with an oblique passageway therebetween to receivethe shank of a tack a". When the ma- Fig. 10, the tack-pick is replacedby the stop 59. The edge of the latter is somewhat advanced over that ofthe pick, and so the column of tacks m in the race is free to advance astep. Upon subsequent movement of the-race to the right, the nose of thepick 23 enters between the foremost tack and the second tack, and, byreason of its beveled end the relative movement of the race, it advancesthe foremosttack so that the latter moves between the opposed ends ofthe pick and stop, and into the discharge throat 37. The tack then dropsin the throat until its head engages the edge of the pick whichintersects the throat (see Fig. 18). The tack is now ready to be driveninto the work, and the throat is in alinement with the driver :21.

Figs. 3 and 6 illustrate the method of pulling the edge of the upper aof a shoe 5 over the edge of the inner sole 0 preparatory to inserting afastener to hold it in place. The edge of the upper is first insertedbetween a pair of gripping jaws 61 and 62. The latter are then closed soas to grip the upper, and the shoe is moved manually so as to draw theupper over the edge of the innersole. The jaw 61, as shown, is formed ona nozzle 63 afiixed in the end of a movable arm 64. The arm is fulcrumedon a stud 65 at the rear of the head 11, and is adapted to be manuallymoved about its I fulcrum, and to actuate tripping mechaend of the-lever67 pivotally connected at 68 to the arm 64:. The other end of the lever67 is connected by a link 69 to one arm of a bell-crank '70 mounted on afulcrum 71 on the head 11 (see Fig. 1). The other arm of the bell-crankmay be connected to one end of a. treadle rod 72, and thereby moved tocause the jaw 62 to close against the jaw 61. After the upper has beengripped between the jaws, it may be drawn tightly by rocking the shoeupon the heel 73 of the jaw 62. The-heel 73 serves as a. fulcrum, and byits aid, the upper may be drawn to. any desired degree of tension. Whenthe upper is thoroughly stretched and drawn over the edge of theinnersole, as shown in. Figs; 3

and 6, the tack-driving mechanism may be caused toinsert a tack by.raising the shoe bodily toward the driver 21. This causes a movement ofthe arm 64 about the fulcrum 65=and=the actuation of the tripping mecha.ment with the driver. This causes the ad- .the tacks in' the race 2:2,but it may yield so as to move with the race when the latter moves itsthroat 37 into alinement with the driver.

The tack-pick holder 56 is. as already stated, mounted on a stud 57 inthe forked end of a lever 53. Aspiing 73 (see Fig. 12) is set into thelever 58 so as to engage the holder 56 and press the pick 23 toward thethroat 37. The free end of the holder is straddled by a fixed bracket orstop 74 which'permits a. limited oscillation of the holder about itsstud 57, and which stops the holder in oppoedge of the pick slightlyintersects the throat 37. In this position the pick obstructs thethroat. sufficiently to prevent the tack w therein from gravitating tothe mouth of the throat. That edge of the pick which underlies the headoi the tack is slightly beveled as indicated at 23, and upon subsequentdownward movement of the driver 21, the

tack is forced past the pick and the latter, by reason of. its bevelededge and yielding mounting, is deflected in opposition to the 'si-tionto the spring 73 when the forward tension of the spring 73. The lever 58is also held in normal position by a spring, thus enabling the holder 56to yield bodily in addition to yielding about its pivoting stud. Thelever 58 is fulcrumed between its ends upon a stud 75, and its rear endis con nected with one end of a plunger rod 76. The-latter is mounted toslide endwise in a bearing 77, in the head 11, and has on its inner enda head between which and the bearing 77 is a spring 7 8. The springexerts its tension to draw the end ofithe lever 58 against the head llwhich constitutes a stop for it. In case a tack should become stuck inthe raceway or in the oblique passage between the ends of the pick 23and stop 59, the two latter members are adapted to yield to the pichngmovement of the tack-race, and thus avoid the aged.

In order to close the gapin. the throat 37 where the raceway enters thenose-a gate 80 is provided. The as shown in Figs.

10 to 14:, is mounted on the stud 57 which holds-the pick holder 56 inthe lever 58.

The free end of the gate occupies an aperture 81 which extends laterallyinto the race; way, tangentially to. the throat 37. wherethe racewayjoins the latter. The gate is below the pick 23- and is of such lengthwet when.

pomibility of being dam-- ice the tack-race is in alinement with thedriver, the end of the gate extends slightly more than across theraceway (Figs. 13, 1d and 18). The gatethus serves to close the gap inthe throat below the pick 23, so that the shank of the tack therein isinclosed, and, upon subsequent movement toward the work, is guided in anupright position. When the tack-race moves to the left to pick anothertack, the raceway is uncovered by the gate, which does not againobstruct the raceway until K after the raceway passes under the obliquepassage-way between the pick and the stop 59. 82 is a guide formed onthe bracket 74 for guiding the driver into the throat 37.

The tripping mechanism, hereinbefore mentioned, for controlling theclutch-setting mechanism, is preferably of such form as to be actuatedby the manually-movable arm 64 which carries the delivery nozzle 68. lln

the form shown, a lever 84, fulcrumed on the I head 11 by astud 85 (seeFig. 1), has in one end a tilting latch 86, and in the other end a roll87 which is adapted to be engaged and raised by the upper edge of thearmfid.

The latch 86 is fulcrumed in the lever 84: upon a pin 88, and is adaptedto overlap and engage the edge of a plate 89 afixed to an extension ofthe controller lever 16. Below the fulcrum 88 the latch has a curvedfinger 90 which normally rests by gravity upon an adjustable stop screw91. The

operation of the tripping mechanism is caused by raising the free end ofthe arm 64: as previously explained. This causes movement of the roll 87by the arm 64 and the lever 84 is tilted upon its fulcrum 85, loweringthe fulcrum 88 in the rear end of the said lever. The finger 90 in itsdownward movement is deflected by the stop 91, thus causing oscillationof the latch 86 about its fulcrum. Meanwhile, the latch, by reason ofits engagement with the plate 89, tilts the controller 16 upon itspivoting stud 18 against the tension of a spring 92, so as to disengageit from the normally operative clutch-setting mechanism 15. The clutchmembers 14 are then moved into operative engagement with each other andthe shaft 12 is set inmotion. The stop 91 is so adjust/ed that it causesthe latch 86 to-move out of engagement with the plate 89 immediatelyafterthe controller 16 is disengaged from the mechanism 15. The spring92 then returns the controller toward its former position in .engagementwith the mechanism 15 and when the latter, which rotates with the shaft12, completes a single revolution,

it is once more rendered inopeuative by the controller. The brake Ymechanism then operates as previously described, and brings the machineto a stop after a complete cycle of operations. When the shoe isafterward lowered away from the jaws 61 and 62, themanner arm 64:resumes its former position, followed by the lever 84: and latch 86which hooks over the edge of the plate 89, and is again in position toretract the controller 15 as described.

lln a tack-inserting'mechanism, a tack race, a tack pick arranged tocobperate.

therewith, a movable support for the pick, means for causing relativepicking. movement of the pick and race to move a tack forward, andyielding means acting on said support to move the pick transversely ofthe picking movement, whereby the pick is held inposition to support theadvanced tack.

2. 1n a tack inserting mechanism, a tack race, a tack pick, one movablerelatively to the other, said tack pick being arranged by reason of therelative movement of the race and pick to enter between the foremosttack and the remaining tacks in the race and to advance the foremosttack, an oppositely arranged stop member for the tacks, and a gatearranged below the tack pick. and pro jectifig in the same directiontherewith for obstructing the tack race between the pick and the mouthof the throat, said pick, stop member, and gate being connected witheach other and yielding as a unit.

- 3. In a tack inserting mechanism, a tack racehaving a dischargethroat, a yielding tack pick arranged by reason of the relative movementof the race and pick to enter between the foremost tack and remainingtacks in the race, and to advance the foremost tack to the dischargethroat and underlie its head so as to support it therein, an oppo- Isitely arranged stop member for the tacks,

race and to obstruct (the race and advance the foremost tack to andsupport it by'its head in the discharge throat, said stop memher beingarranged to permit the gravity feed of the tacks when the tack pick iswithdrawn, and the gate being arranged to en ter between the-shanks ofthe advanced tack and remaining tacks and to confine the shank of theadvanced tack within the discharge' throat.

5. In a tack inserting'mechanism, a tack race having 'a-dischargethroat, a yielding tack pick arranged to enter between the foremosttack. and remaining tacks in the race and to advance the foremost tackinto the throat with yielding pressure, a yielding support for the tackpick, and a gate mounted on the yielding support so as to obstruct thetack race behind the shank of the advanced tack and confine the latterwithin the throat.

6. In a tack inserting mechanism, a tack race having a discharge throat,a support at one side of the race and arranged to yield away therefrom,a tack pick yieldingly mounted on the yielding support and having atapered nose for entering between the shanks of the foremost tack andremaining tacks inthe race and for advancing the foremost tack into thedischarge throat and supporting it yieldingly therein, said race havinga transversely-extending intersecting pawgeway, and a gate mounted onthe yielding support and extending into the said passageway so as toenter between the shanks of the advanced tack and the remaining tacksand confine the former in the throat.

7. Iii a tack inserting mechanism, a tack race having a dischargethroat, a stationary tack pick having a tapered nose by which the shankunder the. head of the foremost tack in the race may be engaged andadvanced into the throat, said race having a transverselyextendingpassageway tangential to that wall of the throat through which the tackenters, and a stationary gate extending into said passageway andarranged to extend across the race tangentially to the throat andconfine the shank of atack in said throat, said tack pick and said gateacting at substantially the same time on the same tack.

8. In a tack-inserting mechanism, a tack race having a discharge throat,a tack pick arranged to cooperate therewith, a support for said pick, apivot member for said support at one side of the delivery end of therace, said support being movable about the axis of said pivot memberwhereby the pick is made capable .of movement substantially parallel tothe length of the race, means for causing relative picking movement ofthe race and pick transversely of the race, and yielding means acting onsaid support to cause the pick to support a tack in the throat.

9. In a'tack inserting mechanism, a tack pick having a. tapered nose andyieldingly mounted so that the nose may yield in two directionstransverse to each other, a stop rigidly connected to the pick so as toform, with the nose, a passageway oblique to both of said directions ofyielding, for the passage of the shank of a tack, a. tack race forconducting tacks to one side of the tack pick in a. directionsubstantially parallel to one of said directions of yielding, said tackrace and said tack pick and stop being laterally movable one relativelyto the other in a direction substantially parallel to the otherdirection of yielding, and a discharge throat at the end of the race-wayon the other side of the tack pick into which the tacks are advanced oneby one with yielding pressure by the pick when the race and the tackpick and stop are moved laterally back and forth relatively to eachother.

10. In a tack inserting mechanism, a tack race having a dischargethroat, a driver movable through said throat across the delivery end ofsaid race. and means arranged to feed a tack from said race into saidthroat and support said tack in said throat until the tack is engaged bysaid driver, saidmeans being arranged to be displaced from tacksupporting position by the driven tack.

11. In a tack inserting-mechanism, a tack race having a dischargethroat, a driver movable through said throat across the delivery end ofsaid race, and means arranged to feed a tack from said race into saidthroat, said means having a yielding tackengaging element arranged tosupport the tack in said race until the tack is engaged by said driver,said tack-engaging element being movable from tack-supportingpositersecting the wall of the throat where the raceway joins theletter, said pick being arranged to advance the tacks one by one intothe throat and support them thereinby yielding tension, and a gatemounted on said yielding support and normally intersecting the racewayat a point tangent to the wall of the throat where the raceway joins thelatter.

13. In a tack inserting mechanisim-a reciprocatory driver, alaterally-movable tack race having a discharge throat normally inalinement with the driver, and a laterally yielding tack pick forcooperating with the tack race to advance the foremost tack into thethroat, said pick having a beveled edge normally intersecting one sideof the throat for supporting, the tack therein. I

14. In a tack inserting mechanism, a normally elevated reciprocatorydriver, a. delivery nozzle in alinement therewith, a laterally-movabletack race having athroat mov able to and from a position in alinementwith and between the driver and the nozzle, and a laterally-yieldingtack pick arranged to advance the foremost tackinthe race into saidthroat and yieldingly supporting said tack in the throat.

tit

tively to the other to cause the pick to en gage the shank of a tack andadlvance it to a position in alinement With the elriver, saicl tack racehaving a throat to receive the ad vance tack and to guide the clriver.

16. A tack insertingrmechanism comprising a tack race having a throat, atack pick, means for efiecting a relative movement of the tack pick andsaid raceway to feed the tack to the throat piece, and means formounting said tack pick so that it may yield laterally anol yieldinglysupport a tack ted thereby in the throat.

17. la a tack-inserting mechanism, a tack race having a dischargethroat, atack pick miagaei arranged to cooperate therewith, movahlemeans supporting said pick and rendering the same capable of movementtransversely of the race and of movement substantially parallel to therace, means for causing relative picking movement of the pick and racetransversely of the race, and yielding means for 'holing the picknormally in position to support a tack in the throat.

In testimony whereof I have alfixedi my signature, in presence of twowitnesses.

HARRIE A. BALLARD. Witnesses:

MARCUS B. Mar,- Pnrnn Pnzznm.

